About the Number

201020105

201020104 ← → 201020106

2進数表記:1011111110110101001011001001

漢数字表記:二億百二万百五

素因数分解:

5 1 × 11 1 × 13 1 × 263 1 × 1069 1

素因数の和:1361
約数の個数: 32
約数和(自身を含む): 284739840
約数和(自身を除く): 83719735

約数列:
[1, 5, 11, 13, 55, 65, 143, 263, 715, 1069, 1315, 2893, 3419, 5345, 11759, 13897, 14465, 17095, 37609, 58795, 69485, 152867, 188045, 281147, 764335, 1405735, 3092617, 3654911, 15463085, 18274555, 40204021, 201020105]

約数ペア:
[(1, 201020105), (5, 40204021), (11, 18274555), (13, 15463085), (55, 3654911), (65, 3092617), (143, 1405735), (263, 764335), (715, 281147), (1069, 188045), (1315, 152867), (2893, 69485), (3419, 58795), (5345, 37609), (11759, 17095), (13897, 14465)]

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